Table 1.
Distribution of colistin-sensitive (Col-S) and colistin-resistant (Col-R) gram-negative strains isolated from human and animal sources
| Organisms | Animal isolates (n = 1285) | Human isolates (n = 5893) | ||||
|---|---|---|---|---|---|---|
| Total | Col-S | Col-R | Total | Col-S | Col-R | |
| E. coli | 658 | 567 (86.2%) | 91 (13.8%) | 2219 | 2216 (99.9%) | 3 (0.1%) |
| Klebsiella species | 231 | 219 (94.8%) | 12 (5.2%) | 1592 | 1591 (99.9%) | 1 (0.1%) |
| Pseudomonas species | 81 | 78 (96.3%) | 3 (3.7%) | 995 | 995 (100%) | 0 (0%) |
| Citrobacter species | 89 | 89 (100%) | 0 (0%) | 351 | 351 (100%) | 0 (0%) |
| Acinetobacter species | 0 | 0 (0%) | 0 (0%) | 318 | 315 (99.1%) | 3 (0.9%) |
| Enterobacter species | 85 | 85 (100%) | 0 (0%) | 260 | 260 (100%) | 0 (0%) |
| Proteus species | 20 | 0 (0%) | 20 (100%) | 10 | 0 (0%) | 10 (100%) |
| Salmonella species | 109 | 109 (100%) | 0 (0%) | 85 | 85 (100%) | 0 (0%) |
| Sphingomonas paucimobilis | 0 | 0 (0%) | 0 (0%) | 25 | 25 (100%) | 0 (0%) |
| Chryseomonas luteola | 4 | 4 (100%) | 0 (0%) | 19 | 19 (100%) | 0 (0%) |
| Pantoea species | 8 | 8 (100%) | 0 (0%) | 19 | 19 (100%) | 0 (0%) |